<p>It was destructive interference, so 5 and 6 1/2</p>
<p>What’d you guys put for the Convex mirror and then the Convex lens</p>
<p>was it Virtual only, and then I, II, III?</p>
<p>Yep, above post</p>
<p>@katnissjohanna Wrong. I don’t recall the exact wording (hopefully someone does, if so please share) but I’m pretty sure it asked for the brightest, so it would be I and II (5,5 and 5,6).</p>
<p>For the convex mirror and convex lense you’re correct</p>
<p>nope, it asked for which pairs would create the LEAST disturbance</p>
<p>maybe there were different versions or something</p>
<p>Yep I remember the word “disturbance.” I’m pretty sure they meant “interference.”</p>
<p>I think I put virtual for the converging lens…</p>
<p>Scratch that. Just googled it, and apparently disturbance means wave. 5 wrong, 0 omitted so far.</p>
<p>anyone remember “Heat is added and temperature increases”</p>
<p>there was also “covering the bottom of a converging lens”</p>
<p>24N for the elevator</p>
<p>^yup that was the right answer for the PV diagram question</p>
<p>Yes, that is what I said</p>
<p>Covering bottom of a converging lense : full image is shown
24N is correct for the elevator</p>
<p>yeah i got the full image is shown but i was scared it was wrong, so i omitted it</p>
<p>compiled answers from thread</p>
<ol>
<li>24N for the elevator</li>
<li>Rotating drum experiment tests = speed</li>
<li>1 and 4 most current</li>
<li>2 and 5 least current</li>
<li>E = blv, so I II and III for moving rod in mag. field</li>
<li>Heat is added and temperature increases</li>
<li>Convex mirror, Virtual only</li>
<li>Convex lens, I II and III, virtual, real bigger, real smaller</li>
<li>5 and 6 1/2 for the pond</li>
<li>decrease length of string to decrease period of pendulum</li>
<li>Sphere has positive charge, electroscope problem</li>
<li>car decelerating, given time to decelerate, can find I II III</li>
<li>momentum ball 1kg is moving at 4 m/s</li>
<li>heaviest student walking up the stairs</li>
<li>positron anti matter</li>
<li>neutron heaviest particle</li>
<li>polarization for light v. sound</li>
<li>bird seems like its higher to the diver</li>
<li>110^-13 electron -> energy</li>
<li>acceleration is a/9</li>
<li>bring charge from q to 4q</li>
<li>ball falling has gravity down, friction up</li>
<li>covering bottom of converging lens = full image shown</li>
<li>ONLY moving magnet towards coil and moving the magnet and coil
towards each other provides emf</li>
<li>area under F v. t graph is change in momentum</li>
<li>block sliding down frictionless: constant acceleration,
constant direction, constant angle</li>
<li>uniform circular satellite: constant acceleration, changing
direction, constant angle</li>
<li>nuclear physics is rutherfords alpha particle gold foil
experiment</li>
<li>4.010^-16 not sure if this is exact number, for the E=hf</li>
<li>reason higher frequency is heard due to doppler effect is that motion of van changes wavelength</li>
<li>force between two wires of current flowing dependent on
magnitude of currents, seperation distance, and length, so I II
III</li>
<li>E field going west</li>
<li>negative particle moves east</li>
<li>double velocity of particle doubles magnetic force</li>
<li>inelastic collision is the balls sticking together</li>
<li>ball lands 2m away</li>
</ol>
<p>does any1 remember getting refraction as an answer for a question? I think it was like what’s the reason for sunglasses or something…</p>
<p>So what is the consensus on the pairs/disturbance question?</p>
<p>Also what were the 2 image locations (#s 17 and 18)?
1st one was a convex lens that looks like this → ()
2nd one was a convex mirror that looks like this → (</p>
<p>nvm 10chars</p>
<p>With 4 wrong and 0 omitted you can still get an 800 can’t you?</p>
<p>If you need a raw score of 60/75, you can get 12 wrong and 0 omitted</p>
<p>Is that always true?</p>
<p>yup, but in the collegeboard subject test book a 59 raw and above is an 800 for physics</p>
<p>that’s a huge curve, 1 wrong 3 omit so far</p>
<p>compiled answers from thread</p>
<ol>
<li>24N for the elevator</li>
<li>Rotating drum experiment tests = speed</li>
<li>1 and 4 most current</li>
<li>2 and 5 least current</li>
<li>E = blv, so I II and III for moving rod in mag. field</li>
<li>Heat is added and temperature increases</li>
<li>Convex mirror, Virtual only</li>
<li>Convex lens, I II and III, virtual, real bigger, real smaller</li>
<li>5 and 6 1/2 for the pond</li>
<li>decrease length of string to decrease period of pendulum</li>
<li>Sphere has positive charge, electroscope problem</li>
<li>car decelerating, given time to decelerate, can find I II III</li>
<li>momentum ball 1kg is moving at 4 m/s</li>
<li>heaviest student walking up the stairs</li>
<li>positron anti matter</li>
<li>neutron heaviest particle</li>
<li>polarization for light v. sound</li>
<li>bird seems like its higher to the diver</li>
<li>110^-13 electron -> energy</li>
<li>acceleration is a/9</li>
<li>bring charge from q to 4q</li>
<li>ball falling has gravity down, friction up</li>
<li>covering bottom of converging lens = full image shown</li>
<li>ONLY moving magnet towards coil and moving the magnet and coil
towards each other provides emf</li>
<li>area under F v. t graph is change in momentum</li>
<li>block sliding down frictionless: constant acceleration,
constant direction, constant angle</li>
<li>uniform circular satellite: constant acceleration, changing
direction, constant angle</li>
<li>nuclear physics is rutherfords alpha particle gold foil
experiment</li>
<li>4.010^-16 not sure if this is exact number, for the E=hf</li>
<li>reason higher frequency is heard due to doppler effect is that motion of van changes wavelength</li>
<li>force between two wires of current flowing dependent on
magnitude of currents, seperation distance, and length, so I II
III</li>
<li>E field going west</li>
<li>negative particle moves east</li>
<li>double velocity of particle doubles magnetic force</li>
<li>inelastic collision is the balls sticking together</li>
<li>ball lands 2m away</li>
</ol>